Folding crib



G, M. THOMSON.

FOLDING CRIB.

APPLICATION FILED DEC.31,1921.

1A3? 633 o Patented Dec. 5, 1922.

4 SHEETS-SHEET1- m ma RE AYS S W ZMJZ A TTOR/VE V e; M. THOMSON.

FOLDiNG CRIB.

APPLICATION FILED DE(,.3I 1921.

Patented Dec. 5, 1922.

4 SHEETS-SHEET 2.

r A TTORNEY G. M. THOMSON.

FOLDING CRIB.

APPLICATION FILED DEC.3I. I921.

1,437, 23, Patented Dec. 5, 19221.

4 $I-IEETSSHEET 3.

INVENTOR' .Thomsofl w ll l lI lm u A TTOR/VEV G. M. THOMSON.

FOLDiNG CRIB.

APPucATmN FILED 0Ec.31,1921.

ant-e01 Bee? 5,

4 SHEETS SHEET 4.

vMontclair, in the county of Essex Patented Dec. 5, 1922.,

. :UTE

firs rrer FFICE.

GEORGE ivr. 'rnoivrsonor iuonrcnarn, new JEnsnY.

roimrne cm.

Application filed December 31, 1921. Serial No. 526,201.

there are two side structures (forming side walls) and two end walls all pivotally connected togetherin such mannernthat one side structure may be moved laterally into close relation to the other to fold the crib. Usually there is a mattresssupport, as a spri11g-mattress, adapted to be seateo when in use in horizontal position in the crib and to stand upright between the two structures when the crib is folded. usually are mounted on wheel supports each Such cribs also turning on a vertical axis. Again, these cribs frequently have a removable screen to cover the top, as where the two side/structures and the "end walls" are screening.

' The present invention consists in certain improvements in such cribs briefly indicated as follows: In novel elevatory means for supporting the mattress-support, so that it may be sustained for reception of the means for supporting themattress support when the same stands edgewise in the folded crib; in novel connections between the two side structures, and the end walls; in novel means for locking each wheel support against turning; and in novel means for connecting the top screen with the crib. In the drawings, Figure l is aside elevation of a crib embodying my invention, the mattress support being in its depressed position and its position when elevated-being shown by dotted lines; H I

Figure 2 is a plan of the crib, with the spring mattress removed, the crib being extended; Fig. 3 an end elevation;

Figure 4 is a fragmentary plan, showing the crib folded;

Figures 5 and 6 are details of. t support locking means; and

Figures 7, 8 and 9 are details of a modification of such lockingmeans.

a and Z) designate the two side structures, the same being. preferably rectangular frames and eachhaving itsbottom rail of he wheelcured therein.

Figs. '2 and t,

provided with.

5 site points in the lower .vided, as by I Each lever of a piece of'heavy wire one end of which has a bearing on the stud-bolt, as by being appreciably superior width. Said" structures have at their ends and projecting toward each other-(Fig. 2) the end plates 0 17) so that each forms a housing at the inner side. To the end plates a are hinged the end walls 0,

The a side structures have screening d se- Theend walls, which form with the side structures a folding frame or and the end walls may I which are also preferably rectangular frames.

body, swing inward on vertical'axes to theposition shown in Fig. 4, and when they are thus swung inwardthe side structure 5 moves in unison therewith to the position shown in that figure, connections to thatend being provided as follows: The plates 5 or" the side structure Z) are recessed at their inner sides, as at e, to r'eceivethe hinges on the ends of the'links f, there being two such hinges or links, upper and lower, at each end of the crib, and the opposite ends of thelinks are upturned and engaged in the slots 9 of fittings g one of-which 18 secured to the under side of each horizontal rail (top and bottom) of the frame forming. each end wall.

The slots extend lengthwise of the plane of the frame or end wall 0, and thus they aflord some lost motion to prevent binding of the, parts when in folding mattress at different elevations; in novel shown by Fig. i.

the crib theyare brought to the position At the ends of the crib, to wit, at opporails of the side and 6, suitable fulcra are prothe stud-bolts 72, projecting inwardly. 0n each stud-bolt is fulcrumed a lever forming part of the elevating means. consists in the present example structures a as in foldingthe crib,

bent into an eye 2' to receive the same, the

wirehavin 'a' strai ht ort-ion extendin [from its bearing-i, a rebent arched portion is, and an obliquely bent-off arm Z each lever of the crib preferably have their arched portio'ns so arranged that when the levers are swung to the position shown by Fig. 1 so' thatthcy stand upright said arched portions vwill face the, respective nearer ends of the crib. On these levers is adapted to rest the mattress support m, as an ordinary springmattress, which it will be obvious will be the above-described tress support endwise is counteracted by the other and so the movement-of said support is'substantially vertical at all times. At the inside of tlie bottom rail of each side structure is arrangeda two-armed lever a (secured on a shaft to be described in detail),

and the arms ofeach such lever are respectivelypivotally connected to the arms Z of the aforementioned elevating levers by links it; since the arms of the levers a project in opposite directions it will appear in view of arrangement of the elevating levers that when said levers it are moved together one way or the other in the same direction all the elevating levers will either be raised or lowered together. The

means an connecting the two elevating levers 7'-7aZ at each side of the crib serve not only for raising and lowering them but for llOldlIlgtllQDl against falling from the elevated to the repressed positions; in the present'instance this latter is due to connecting the relatively corresponding arms of the elevating levers, by the links ('ri), one

with one arm and the other with the other arm of the lever 'n, sothat when the elevating levers are in their elevated positions the links'assume approximately dead-center relation to the axis of lever it. As for the men- -tioned shaft: One end portion thereof 18 formed by a stub 0 journaled in a bearing 79 in the lower rail of side structure band having a-square inwardly open socket 0 and a circumferential groove 0, being kept in said bearing by a notched plate 9 straddling it andengaged'in-its groove 0 and secured to said'r'ail. The other end portion of the shaft is formed by a stub rjourn'aled in a'bearing s in the lower rail of side structure a and having a squared inner end r and a circumferential groove r", being kept in the hearing by'a' notched plate 6, straddling it and engaged in said groove and secured to the rail.

There are also two rods 14, square in crosssecti'on, andjointed by the hinge 0 end to end so as to stand alined'with each other (Fig. 2) or folded (Fig. 4), one rod being hinged at its outer end to the stub r by the hinge w and the other being adapted to enter and fit the square socket 0 of the stub 0. "So that the torque of the shaft will not impose'undue strain on thehinges Q) and to *there may be an end lug a on each rod, one to "overlap the stub r and the other to overlap the other rod. The levers n are mounted on the stubs of the shaft. The shaft has on one of thestubs, as r, a handle or lever y for turning it, y being a guide for this lever. When the crib is folded, rod u adjoining the side structure bhas its end withdrawn from socket 0, whereupon the rods are shifted to the folded position.

Each wheel-support, including a fork .2 pivoted on a vertical. axis in the lower rail of a side support,and a wheel 2,:is adapted to be locked in the position where all the wheels are parallel by the followingmeans: Si. slide, shown as a heavy wire 3bent'1nidway its length and shaped so as 'to form at one end of the slide the spring-fork 3', at the otherend adownturned handle or lug 3 and between its ends a'longitudin'al slot 3. is attached to the under side ofthe' rail by two screws 4 passed through said slot. The spriugdork projects towardthe fork z and when the latter is in properposition the slide may be moved longitudinally to thrust the f0 1: 3 into fork .2 to lock the latter against turning or to withdraw said fork 3 and unlock fork 2; preferably fork3' is beveled, as at 3*, to facilitateits entry into fork 2. In Figs. 7 to9 is shown. a mo lified form of wheel-support locking means: The oi'k .2 has at its crotch ahorizontal plate 5 vith dian'ietrically opposed'pairs of notches A U-shaped wire clip 6 is sli'dable vertically in holes 7 inthe rail,'its movement being limited by the stops 6' and it'preferably having its upper end bent overto'form a handle 6 when the clip is forced down, with either pair of notches in registry with its legs the latter will engage in said notches and lock the wheel support "against turning.

When the crib is folded (which will 'usually be done when the elevating levers'are depressed) the mattresssupportis' shifted from the horizontal position and'placed in the coinpartmentforined by the housing a a and the (folded) end walls 0. For its support at this time 1 provide a pair of hangers 8 each oonsisting of astrong strip of metal having'one end secured to the inside ofthe lower rail of side structure a and its body portion arched and bentdownwardlyand its free end bent to forman upwardly open aook or socket. The arched portion not only affords the necessary clearance for'the anal of the adjoining elevating lever but serves to guide the edge of the mattress support to its seat in the hook or socketand clear of the folded parts a u of the'shaft when said'su'pport is to be stowed in the compartment'mentioned.

The topscreen 'l0'is connected with each end of the crib as follows, assuming'the crib to be extended as in'Figs. 2 and?) andthe screen to be superimposed thereon: Ho*oks 11 and 12 are respectively pivoted'to the edge of the screen adjoining the end of the crib near the back and somewhat to the right of the center (Fig. 3) of the screen, and their hooks are engaged with headed studs 13 arranged one on the end wall somewhat lower, on the side structure a a. With these connections the screen can be swung to the dotted position in Fig. 3 where it will hang suspended and may rest against a buffer H. The hooks may be detached from the studs 13 so as to remove the screen from the crib, if desired.

It will be understood that the mattress adapted to rest on the mattress support may, when the crib is folded, be stowed in the compartment mentioned between the mattress support and the wall a. i

Tal'aving thus fully described my invention, what I claim is:

1. In combination, a frame, a structure to be sustained therein at different elevations, and elevatory supporting means for said structure including a lever fulcrumed in said frame to move in an upright plane and having an arm arched from substantially the fulcrum, to the end of the arm and the arched surface of said armin wiping contact with an under face of said structure.

2. In combination, a frame, a structure to be sustained therein at different elevations, and elevatory supporting means for said structure including a lever fulcrumed in said frame to move in an upright plane, said lever being formed of a length of metal having a part thereof rebent and arched and the arched surface of its arched portion in wiping contact with the under side of said structure.

0 and the other,

structure and movable in each side structure, and means to move said elevatory means in unison including a foldable member extending from one to the other side structure and journaled therein.

i. In combination, a frame including two side structures and ioldable means connect ing them, a structure to be sustained therein, elevatory means supporting the latterstructure and movable in each side structure, and means to move said elevatory means in unison including power transmitting parts journaled in the respective side structures and a foldable member extending from one of said parts'to the other and connected to rotate with but disconnectible from one of them and also connected to rotate with the other of them.

'5. In a crib or the like, the combination of a frame including a horizontally elongated housing open at the top, a flat structure to be received therein inupright position, and hangers attached to and projecting inwardly and each bent in a curve downwardly from one wall of the housing and having at their free ends upwardly open hooks to receive one edge portion of said structure, said hangers being arched as to their upper surfaces froin their hooks to substantially said wall.

In testimony whereof I affix my signature. GE ORGE M. THOMSON. 

